1. Money in any form when in actual use as a medium of exchange, especially circulating paper money. 2. Transmission from person to person as a medium of exchange; circulation: coins now in currency. 3. General acceptance or use; prevalence: the currency of a slang term. 4. The state of being current; up-to-dateness.
glossary
1. The next person or entity in the business flow who receives the output of the preceding person or entity (supplier) in the form of a product, service or information. 2. A person one has to deal with. 3. Attracting customers is the primary goal of most businesses because it is the customer who creates demand for goods and services.